eWON Firmware 12.2-13.0 Authentication Bypass via wsdReadForm
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-798.
Summary
eWON Firmware versions 12.2 to 13.0 contain an authentication bypass vulnerability that allows attackers with minimal privileges to retrieve sensitive user data by exploiting the wsdReadForm endpoint. Attackers can send POST requests to /wrcgi.bin/wsdReadForm with base64-encoded partial credentials and a crafted wsdList parameter to extract encrypted passwords for all users, which can be decrypted using a hardcoded XOR key.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-25470
- 2026-10-03 Alias added: GHSA-jcxq-mj3r-cxrh
References
Exploit 1
Other 1
More eWON vulnerabilities
- TI-2015-06593 eWON devices with firmware before 10.1s0 omit RBAC for I/O server information and status… CVSS 3.0CRITICAL 9.9
- TI-2015-06595 eWON devices with firmware before 10.1s0 do not have an off autocomplete attribute for a… CVSS 3.0HIGH 8.5
- TI-2015-06591 eWON devices with firmware before 10.1s0 do not trigger the discarding of browser session… CVSS 3.0HIGH 8.8
- TI-2015-06592 Cross-site request forgery (CSRF) vulnerability on eWON devices with firmware through… CVSS 3.0HIGH 8.0
- TI-2015-06594 Cross-site scripting (XSS) vulnerability on eWON devices with firmware through 10.1s0… CVSS 3.0MEDIUM 6.1
- TI-2015-06596 eWON devices with firmware through 10.1s0 support unspecified GET requests, which might… CVSS 3.0MEDIUM 4.3
Sources
- CVE-2019-25470 · CVE Program
- CVE-2019-25470 · NVD
- FIRST EPSS
- GHSA-jcxq-mj3r-cxrh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences